September weather forecast and climate
Marmaris, Turkey TR

• Average high temperature in September: 30.8°C

The warmest month (with the highest average high temperature) is July (34.5°C).
The month with the lowest average high temperature is January (15.1°C).

• Average low temperature in September: 20°C

The month with the highest average low temperature is August (23.2°C).
Coldest months (with the lowest average low temperature) are January and February (7°C).

• Average rainfall in September: 24.5mm

The wettest month (with the highest rainfall) is December (289.9mm).
The driest month (with the lowest rainfall) is August (7.9mm).

• Average rainfall days in September: 2.1 days

The month with the highest number of rainy days is January (13.7 days).
The month with the lowest number of rainy days is August (1 days).

• Average sea temperature in September: 26.4°C

The best month for swimming (with the highest average sea temperature) is August (27.2°C).
Coldest months (with the lowest average sea temperature) are February and March (16.8°C).

• Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.7h).

• Average sunshine in September: 9.1h

The month with most sunshine is July (Average sunshine: 11.1h).
The month with least sunshine is December (Average sunshine: 3.6h).

• Average UV index in September: 7

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).